Why has it been said that only insects directly compete with humans for food ?

Use your brain power! Why does the pitcher plant feed on insects even though it produces food by photosynthesis?

Why has the cranial capacity increased of human beings?

Body organization of human has been shown in the following figure. Use appropriate labels in that figure. Which organs are present In human body ?

The entry of computers in all fields in this age of technology has been possible only due to the increased speed of computers. In which fields of work do we see computers being used?

Our lifestyle has been changed to some extent in this age of technology. Each person is busy with own daily routine work and favourite job only. How much is it scientifically correct ?

Read the paragraph and answer the questions given below: Renewable energy is energy produced from sources that do not deplete or can be replensied within a human's life time. The most common examples include wind, solar, geothermal, biomass, and hydroelectric power. This is in contrast to non-renewable energy is derived directly or indirectly from the sun. Sunlight can be captured directly using solar technologies. The sun's heat drives winds, whose energy is captured with turbines. Plants also rely on the sun to grow and their stored energy can be utilized for bioenergy. Not all renewable energy sources rely on the sun. For examples, geothermal energy utilizes the Earth's internal heat, tidal energy relies on the gravitational pull of the moon, and hydroelectric power relies on the flow of water. Why will energy from fossil fuel be over soon?

Fill in the blanks with the right word from the brackets : Pushing forward the food that has been chewed is the function of the ............(stomach / oesophagus).

Answer the following Read the paragraph and answer the questions given below it. Food poisoning can occur due to contamination of food by various bacteria and fungi.Clostridia are bacteria responsible for spoilage of cooked food. There are around 100 species of this bacteria viz. Clostridium tetani, Clostridium botulinum, etc. that are present either free living in soil or the alimentary canal of humans and other animals. The bacteria are rod- shaped and produce pottle-shaped endospores in adverse environmental conditions. These microbes cannot withstand normal oxygen levels in air and grow under anaerobic conditions. Why is Clostridium mostly found to contaminate tinned or canned foodstuff?

Why human brain has such a problem solving capacity? Why and how we evolved along these lines? What is the extent of similarity between humans, chimpanzee and monkeys?

Since your earlier school days you have been solving mysteries/puzzles labelled as use your brain power . Did you ever wonder why human brain has such a capacity ? Why and how we evolved along these lines ? What is the extent of similarity between are humans , chimpanzees and monkeys ?